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Coherent microwave power at K-band frequencies has been generated by bars of p-type indium antimonide with recrystallized surfaces and bars of indium antimonide with layered p and n regions. At an ambient temperature of 77°K, electric and magnetic fields are applied to the rod at an angle θ, to each other. A theory which considers the two-stream interaction in a transverse magnetic field is presented. The output frequency predicted by the theory is in the range of experimental observation.
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Swartz et al. (1966) studied this question.
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